DEFINITION of 'Dread Disease Rider'. A special addition to a life insurance policy that gives a percentage of the death benefit to the policy holder if he or she is diagnosed with a serious disease, such as cancer or heart disease. Next Up. Money from a dread disease rider is typically used to help offset the medical costs of the disease.
Statistical Experiment. All statistical experiments have three things in common: 1  The experiment can have more than one possible outcome. 2  Each possible outcome can be specified in advance.3  The outcome of the experiment depends on chance.here is more than one possible outcome. We can specify each possible outcome in advance-heads or tails. And there is an element of chance. We cannot know the outcome until we actually flip the coin.
2. (Statistics) statistics. a. having a value which cannot be determined but only described probabilistically: a random variable. b. chosen without regard to any characteristics of the individual members of the population so that each has an equal chance of being selected: random sampling.